Vikings: Monday training camp headlines

Monday was a relatively slow day by the standard Vikings training camp usually offers on a daily basis, but there were still some solid story lines to keep up with. Rookie Harrison Smith got some work on the first team defense and Everson Griffen may be moving back to the defensive line.

Adrian Peterson, fresh off the physically unable to perform list, practiced with his teammates Sunday as the Vikings were back in Mankato for training camp. It was the first time he was able to participate with his teammates since tearing his ACL last December. Peterson says he kept his faith and now he's "back in the mix."